Unmanned Aerial Vehicles

An unmanned aerial vehicle (UAV), also known as a drone, is an aircraft without a human pilot, crew, or passengers on board. UAVs were originally developed for military missions, but have since expanded to various non-military applications, including aerial photography, precision agriculture, and environmental monitoring. UAVs can be remotely piloted or autonomous, and may carry a lethal or non-lethal payload. The term UAV is commonly used in military contexts, while the term unmanned aircraft system (UAS) emphasizes the importance of elements other than the aircraft, including ground control stations and data links.learn more on wikipedia